Pregnant & Stressed over child's father.

I'm so tired of crying , I just wanna feel happy again . I feel so down about him leaving me . He's been in and out of my life since I've gotten pregnant. I'm 5 months pregnant working a 9:30 to 6:30 job dealing with kids all day 😒. and I just feel so much depression weighing down on me . I guess I want a family for my unborn daughter so much that I'm willing to beg and text him over and over . I was doing good for a whole week not calling or texting him but today I broke down and texted . I made the mistake of telling him all my feelings and telling him I wanted to get back together, he texted me back and told me he loved me to but never continued to text me.  I just feel like how can you let the mother of your child go through this alone and you just watch and not do anything.  I try not to cry because I don't want stress on my baby but I can't help it . I've tried everything from going out to watching tv and shopping but I can't get him out of my head . How do I let him go ? Please help.